[Qemu-devel] [PATCH v3] correct error message qemu-img reported

[liguang <lig.fnst@cn.fujitsu.com>]

qemu-img will complain when qcow or qcow2
size overflow for 64 bits, report the right
message in this condition.

Signed-off-by: liguang <lig.fnst@cn.fujitsu.com>
---
 qemu-img.c |    9 +++++++--
 1 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/qemu-img.c b/qemu-img.c
index b41e670..d4ea800 100644
--- a/qemu-img.c
+++ b/qemu-img.c
@@ -337,10 +337,15 @@ static int img_create(int argc, char **argv)
 
     /* Get image size, if specified */
     if (optind < argc) {
-        int64_t sval;
+        int64_t sval = 0;
         char *end;
         sval = strtosz_suffix(argv[optind++], &end, STRTOSZ_DEFSUFFIX_B);
-        if (sval < 0 || *end) {
+        if (sval < 0) {
+            error_report("image size is too large!");
+            ret = -1;
+            goto out;
+        }
+        if (*end) {
             error_report("Invalid image size specified! You may use k, M, G or "
                   "T suffixes for ");
             error_report("kilobytes, megabytes, gigabytes and terabytes.");
-- 
1.7.1